LAWRENCE - Three people were killed and two others injured in an accident involving an SUV and tractor-trailer this evening, authorities said.

Two boys and a woman in her 30s in the SUV died in the crash at Business Route 1 and Darrah Lane, according to the Mercer County Prosecutor's Office. Authorities believe the boys were 5 months old and 9 years old.

A man and a girl also in the SUV were hurt and were in stable condition at the hospital, said Angelo J. Onofri, first assistant Mercer County prosecutor. The man was driving, Onofri said.

The crash happened about 6:30 p.m., said Trenton Battalion Chief Franl Seidl. Both vehicles were traveling south, and the SUV became wedged under the truck.

Trenton firefighters were sent to Lawrence because they have the most advanced equipment, Seidl said.

The tractor-trailer driver was taken to Lawrence police headquarters, Onofri said. Authorities did not release the names of those involved in the crash.

Business Route 1 was closed in both directions while the crash was investigated.